DE69307779D1 - Back lighting device - Google Patents

Back lighting device

Info

Publication number
DE69307779D1
DE69307779D1 DE1993607779 DE69307779A DE69307779D1 DE 69307779 D1 DE69307779 D1 DE 69307779D1 DE 1993607779 DE1993607779 DE 1993607779 DE 69307779 A DE69307779 A DE 69307779A DE 69307779 D1 DE69307779 D1 DE 69307779D1
Authority
DE
Germany
Prior art keywords
lighting device
back lighting
back
device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE1993607779
Other languages
German (de)
Other versions
DE69307779T2 (en
Inventor
Keiji Kashima
Naoki Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Tosoh Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP4168338A priority Critical patent/JP2980776B2/en
Application filed by Tosoh Corp filed Critical Tosoh Corp
Application granted granted Critical
Publication of DE69307779D1 publication Critical patent/DE69307779D1/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/005Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031Reflecting element, sheet or layer
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/007Incandescent lamp or gas discharge lamp
    • G02B6/0071Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • G09F2013/1804Achieving homogeneous illumination
    • G09F2013/1831Achieving homogeneous illumination using more than one light source
DE1993607779 1992-06-04 1993-06-03 Back lighting device Expired - Fee Related DE69307779D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4168338A JP2980776B2 (en) 1992-06-04 1992-06-04 Backlight

Publications (1)

Publication Number Publication Date
DE69307779D1 true DE69307779D1 (en) 1997-03-13

Family

ID=15866211

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1993607779 Expired - Fee Related DE69307779D1 (en) 1992-06-04 1993-06-03 Back lighting device
DE1993607779 Expired - Lifetime DE69307779T2 (en) 1992-06-04 1993-06-03 Back lighting device

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1993607779 Expired - Lifetime DE69307779T2 (en) 1992-06-04 1993-06-03 Back lighting device

Country Status (4)

Country Link
US (2) US5392199A (en)
EP (1) EP0573051B1 (en)
JP (1) JP2980776B2 (en)
DE (2) DE69307779D1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2980776B2 (en) * 1992-06-04 1999-11-22 東ソー株式会社 Backlight
TW454922U (en) * 1994-03-23 2001-09-11 Tosoh Corp Rear side irradiation light
DE69426978D1 (en) * 1994-04-22 2001-05-03 Enplas Corp The surface light source apparatus
JP2841030B2 (en) * 1994-07-25 1998-12-24 株式会社村上開明堂 Manuscript display device
JP3234967B2 (en) * 1995-03-31 2001-12-04 株式会社エンプラス The surface light source device
US5613751A (en) 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
US6712481B2 (en) * 1995-06-27 2004-03-30 Solid State Opto Limited Light emitting panel assemblies
US5947578A (en) * 1995-10-24 1999-09-07 Nu-Tech & Engineering, Inc. Back lighting device
JP2945318B2 (en) * 1996-01-17 1999-09-06 スタンレー電気株式会社 The surface light source device
CN2324748Y (en) * 1996-02-20 1999-06-16 托马斯·利贝 Light-projector
JP3322579B2 (en) * 1996-10-17 2002-09-09 株式会社エンプラス Side light type surface light source device
US6024463A (en) * 1996-11-12 2000-02-15 Enplas Corporation Surface light source device of side light type with belt-like diffusible area
US5913594A (en) * 1997-02-25 1999-06-22 Iimura; Keiji Flat panel light source device and passive display device utilizing the light source device
KR100249679B1 (en) * 1997-04-10 2000-03-15 구본준 Backlight unit
US5883684A (en) * 1997-06-19 1999-03-16 Three-Five Systems, Inc. Diffusively reflecting shield optically, coupled to backlit lightguide, containing LED's completely surrounded by the shield
JP3415394B2 (en) * 1997-07-08 2003-06-09 シャープ新潟電子工業株式会社 Backlight device
GB9720907D0 (en) * 1997-10-03 1997-12-03 Menvier Electronic Eng Ltd Illuminated signs
IT1307920B1 (en) * 1999-01-22 2001-11-29 Atochem Elf Sa Composites diffusing the light.
ES2164586B1 (en) * 2000-02-23 2003-05-16 Juan Roura Y Cia S A Support for advertising and similar reasons.
GB0026418D0 (en) * 2000-10-28 2000-12-13 Randak Design Consultants Ltd Image display system
PL343963A1 (en) * 2000-11-16 2002-05-20 Grzegorz Drozdowski Edge-illuminated optical device
KR100413486B1 (en) * 2001-07-10 2003-12-31 엘지.필립스 엘시디 주식회사 Backlight assembly of Liquid Cristal Display
DE10156068A1 (en) * 2001-11-16 2003-05-28 Roehm Gmbh Light-guiding body, and methods for its preparation
JP4216577B2 (en) * 2002-12-20 2009-01-28 シチズン電子株式会社 Light guide plate
US7104671B2 (en) * 2004-05-28 2006-09-12 K-Bridge Electronics Co., Ltd. Lamp replacement
US20080165540A1 (en) * 2004-11-26 2008-07-10 Asahi Kasei Chemicals Corporation Light Emitting Body and Light Emitting System
US20060150966A1 (en) * 2005-01-12 2006-07-13 Jamieson Donald R Fireplace assemblies with antireflective screens
JP2006351387A (en) * 2005-06-16 2006-12-28 Matsushita Electric Ind Co Ltd Surface light source device, and liquid crystal display device
KR101212136B1 (en) * 2005-06-29 2012-12-14 엘지디스플레이 주식회사 Prism sheet and back light unit
KR101321268B1 (en) * 2005-12-27 2013-10-25 엘지디스플레이 주식회사 Backlight unit of LCD
TWI332596B (en) * 2006-12-22 2010-11-01 Au Optronics Corp Lamp reflector for use in a backlight module, and method for making same
CN101779148B (en) 2007-06-14 2014-06-25 艾利丹尼森公司 Illuminated graphical and information display
US8412010B2 (en) 2007-09-10 2013-04-02 Banyan Energy, Inc. Compact optics for concentration and illumination systems
CN101809377B (en) * 2007-09-10 2013-07-24 榕树能量公司 Compact optics for concentration, aggregation and illumination of light energy
US7672549B2 (en) * 2007-09-10 2010-03-02 Banyan Energy, Inc. Solar energy concentrator
AU2011319939A1 (en) 2010-10-28 2013-05-23 Banyan Energy, Inc. Redirecting optics for concentration and illumination systems
KR101291798B1 (en) * 2008-06-10 2013-07-31 엘지디스플레이 주식회사 Liquid Crystal Display Module And Assembling Method Thereof
US20100008070A1 (en) * 2008-07-10 2010-01-14 Wai Hon Lee Back light module with diffractive couplers
KR101338996B1 (en) * 2008-12-26 2013-12-09 엘지디스플레이 주식회사 Liquid crystal display device
US8206013B2 (en) * 2010-04-07 2012-06-26 San Ho Enterprise Co., Ltd. Light-guiding module
US20140098521A1 (en) * 2012-10-10 2014-04-10 Shenzhen China Star Optoelectronics Technology Co. Ltd. Backlight Module and LCD Device
DE202014000264U1 (en) 2014-01-10 2015-04-13 Novomatic Ag lighting device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1246347A (en) * 1959-10-09 1960-11-18 light nameplate
US4043636A (en) * 1974-12-23 1977-08-23 Intel Corporation Illumination-panel for liquid crystal display of similar device
JP3077907B2 (en) * 1989-06-07 2000-08-21 三菱化学株式会社 Backlight device
US5093765A (en) * 1990-02-16 1992-03-03 Tosoh Corporation Back lighting device for a panel
JPH0466519B2 (en) * 1990-03-06 1992-10-23 Meitaku Syst Kk
JP2513348B2 (en) * 1990-07-18 1996-07-03 三菱電機株式会社 Lighting device
JPH04107507A (en) * 1990-08-29 1992-04-09 Hirashiro Yukiko Plane light source unit
US5050946A (en) * 1990-09-27 1991-09-24 Compaq Computer Corporation Faceted light pipe
JP2980776B2 (en) * 1992-06-04 1999-11-22 東ソー株式会社 Backlight
JP3069184U (en) * 1999-11-24 2000-06-06 株式会社金城興業 Construction machinery combined type crushing device

Also Published As

Publication number Publication date
US5647655A (en) 1997-07-15
DE69307779T2 (en) 1997-08-07
JP2980776B2 (en) 1999-11-22
US5392199A (en) 1995-02-21
EP0573051A1 (en) 1993-12-08
EP0573051B1 (en) 1997-01-29
JPH05341134A (en) 1993-12-24

Similar Documents

Publication Publication Date Title
DE59310355D1 (en) Oxadiazinderivate
DE69302363D1 (en) Konvektionstürme
DE69220091D1 (en) Vormischgasdüse
DE59308499D1 (en) Organosilanpolykondensate
DE59204930D1 (en) Handschliessplombe
DE59301595D1 (en) fastening device
DE69325303T2 (en) fast Katheteraustauschersystem
DE69319812T2 (en) Timing device
DE69329726D1 (en) Simultaneous Einstufenimmunoassay
DE59307855D1 (en) Defibrillierungssystem
AT176841T (en) Fernsehprogrammverteilsystem
AT209837T (en) Netzwerkechokompensator
AT159160T (en) Trokarwundverschlussvorrichtung
AT147752T (en) Oligothionukleotide
AT217904T (en) nucleozymes
AT216603T (en) Absaugsteuervorrichtung
AT174146T (en) CELP - Vocoder
AT167067T (en) Wegwerfinhalator
AT170248T (en) Toilettengarnitur
AT198331T (en) Dioxolanzwischenprodukte
AT172828T (en) Zellularanordnung
AT183957T (en) Rasierblattstruktur
AT168992T (en) 7-substituted-9-substituted glycylamido-6-demethyl-6-deoxytetracyclines
AT160540T (en) gyrocopter
AT177273T (en) Digital-broadcast-transmitter network-system

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee